PREPARATION OF TRANSPARENT NON-CRYSTALLINE STOICHIOMETRIC MAGNESIUM ALUMINATE GEL-MONOLITH BY THE SOL-GEL PROCESS

被引：52

作者：

DEBSIKDAR, JC

机构：

[1] Battelle, Columbus Lab, Columbus,, OH, USA, Battelle, Columbus Lab, Columbus, OH, USA

来源：

JOURNAL OF MATERIALS SCIENCE | 1985年 / 20卷 / 12期

关键词：

GELS - Manufacture - OPTICAL DEVICES - Materials;

D O I：

10.1007/BF00559334

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transparent non-crystalline stoichiometric magnesium aluminate gel-monolith was prepared by chemical polymerization reaction between aluminium alkoxide and magnesium salt. The reaction mechanisms of gel formation are discussed. The oven-dried gel was freed from residual organics by chemical treatment with hydrogen peroxide solution. X-ray analysis of organic-free gel powder after heat treatment for 4 h at 2000 degree C did not show any indication of phase separation. It is suggested that the use of sol-gel-derived powders could largely eliminate most of the problems associated with the conventional method of fabrication of optically transparent stoichiometric magnesium aluminate spinel.

引用

页码：4454 / 4458

页数：5

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